As defined in Merriam Webster�s Collegiate Dictionary, a toxin is �a poisonous substance that is a specific product of the metabolic activities of a living organism �� . The fact that people are living organisms which undergo metabolism suggests that people themselves produce the toxic substances inside their bodies, which eventually cause harm in terms of sickness and other negative health conditions. Meanwhile, detoxification is a major �bodily process designed to deal with health threatening toxic condition posed by our environment, our diets, and even our bodies themselves� (Slaga & Keuneke, 2003, p. 6). In a simpler manner, Lieberman and Gormley (2005) describes detoxification refers to the elimination of harmful substances from the human body. Hence, detoxification should always be viewed as a positive process and this book is about how to get the best results using a low acid diet.